Hirschmann 1912,pe4h, and C. fuscata was desig- 
nated genotype by Sars 1925,pe177; Cytheridae-- 
Cytherinae by Elofson 1941,p.276] Recent, Ne. W. 
Europee 
CYTHEROPSIS M'Coy 1649,pe414, no species mentioned; 
Cytheropsis aldensis M’Coy 1851,p.387 is first 
species described. [?= Pontocypris by Bassler and 
Kellett 1934,p.e436, but type still requires re-- 
study] Cambro-Silurian limestone of Aldens, 
Ayrshire by MtCoy. 
CYTHEROPSIS [C. argus] Sars 1866,p.57-58, Recent, Norway. 
Junior homonym of Cytheropsis M'Coy, = Eucythere 
Brady 1668 »Pe 429-6 
CYTHEROPTERON [given by Sars as "Cytheropteron convexum 
CYTHERURA 
(Baird)" on mistaken identity = Cythere latissima 
Norman 18&65,p.19,pl.6,f.5-8, by Brady 1868a, 
pe4h8; by Brady & Norman 1889,p.207; and by Sars 
1926 ,p.223] Sars 1666,p.79,80 [Cytheridae-- 
Cytherurinae by G. W. Miiller 1894,p.286] Recent, 
North Atlantic. Perhaps 300 species, Recent and 
fossil. 
[Cythere gibba (male) and Cythere gibbera (female) 
O. Fe Muller 1785 - designated by Brady & Norman 
1889,p.190] Sars 1866,p.69,70. [Cytheridae-Cy- 
therurinae by Ge We Muller 1894,p.286] Recent, 
North Atlantic. 
58 
